Countess Palatine Irmengard of the Rhine, also known as Irmengard of Baden (c. 1200 – 24 February 1260) was Margravine of Baden by her marriage to Herman V, Margrave of Baden-Baden. She brought the city of Pforzheim into the marriage. She was the daughter of Henry V, Count Palatine of the Rhine, who was also duke of Brunswick, and his wife Agnes of Hohenstaufen. Her paternal grandfather was Henry the Lion. — General State Archive in Karlsruhe